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Finding the Fourth Proportional to 18,059.52, 27,045.27 and 12,497.25

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Solution

The fourth proportional to 18,059.52, 27,045.27 and 12,497.25 is: 18,715.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,059.52 : 27,045.27 = 12,497.25 : x
  2. Step 2: Convert to fraction form
    18,059.52/27,045.27 = 12,497.25/x
  3. Step 3: Cross multiply
    18,059.52x = 27,045.27 × 12,497.25
  4. Step 4: Simplify right side
    18,059.52x = 337,991,500.51
  5. Step 5: Solve for x
    x = 337,991,500.51/18,059.52
  6. Step 6: Final answer
    x = 18,715.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.